Resolve conflicts.

5 files changed, 437 insertions, 192 deletions

diff --git a/contrib/bind/bin/named-xfer/named-xfer.c b/contrib/bind/bin/named-xfer/named-xfer.c
index d7db886..dd70d7b 100644
--- a/contrib/bind/bin/named-xfer/named-xfer.c
+++ b/contrib/bind/bin/named-xfer/named-xfer.c
@@ -131,7 +131,7 @@ char copyright[] =
 
 #if !defined(lint) && !defined(SABER)
 static const char sccsid[] = "@(#)named-xfer.c	4.18 (Berkeley) 3/7/91";
-static const char rcsid[] = "$Id: named-xfer.c,v 8.89 1999/11/09 20:36:54 marka Exp $";
+static const char rcsid[] = "$Id: named-xfer.c,v 8.93 2000/04/20 07:33:47 vixie Exp $";
 #endif /* not lint */
 
 #include "port_before.h"
@@ -179,7 +179,7 @@ static const char rcsid[] = "$Id: named-xfer.c,v 8.89 1999/11/09 20:36:54 marka
 
 #define MAX_XFER_RESTARTS 2
 
-#define ENABLE_IXFR 0
+#define ENABLE_IXFR 1
 
 # ifdef SHORT_FNAMES
 extern long pathconf __P((const char *path, int name));	/* XXX */
@@ -192,7 +192,7 @@ static	char		*ddtfilename = NULL,
 			*ddtfile = NULL;
 
 static char   *tmpname = NULL, 
-			*tmpiname = NULL,	/* temporary file name for ixfr transaction file */
+			*tmpiname = NULL, 	  /* temporary file name for ixfr transaction file */
 			*domain;	/* domain being xfered */
 
 static	int		quiet = 0,
@@ -210,12 +210,12 @@ static	void		usage(const char *),
 			tsig_init(const char *);
 static	int		getzone(struct zoneinfo *, u_int32_t, int),
 			print_output(struct zoneinfo *, u_int32_t, 
-				     u_char *, int, u_char *),
+				     u_char *, int, u_char *, int),
 			netread(int, char *, int, int),
 			writemsg(int, const u_char *, int);
-static void		ixfr_log(const u_char *msg, int len, int *delete,
+static int		ixfr_log(const u_char *msg, int len, int *delete,
 				 FILE *file, struct sockaddr_in *sin,
-				 char *domain, u_int32_t serial_no, int *);
+				 char *domain, u_int32_t *serial_no, int *);
 static	SIG_FN		read_alarm(void);
 static	SIG_FN		term_handler(void);
 static	const char	*soa_zinfo(struct zoneinfo *, u_char *, u_char*),
@@ -226,7 +226,6 @@ struct zoneinfo		zp_start, zp_finish;
 static int		restarts = 0;
 static int		check_serial = 0;
 static int		xfr_qtype = T_AXFR;
-static u_int32_t	old_serial;
 
 FILE			*ddt = NULL;
 int 			servermethode[NSMAX];
@@ -693,8 +692,8 @@ main(int argc, char *argv[]) {
 			if (movefile(tmpname, ixfrfile) == -1) {
 				perror("movefile");
 #ifdef DEBUG
-                   if (debug)
-                     (void) unlink(ddtfile);
+				if (debug)
+					(void) unlink(ddtfile);
 #endif
 				if (!quiet)
 					syslog(LOG_ERR,
@@ -834,7 +833,6 @@ int	soa_cnt = 0, scdsoa = 0, methode = ISNOTIXFR;
 int     delete_soa = 1;
 u_int32_t final_serial = 0;
 int	ixfr_soa = 0;
-int 	firstsoa = 1;
 int	ns_cnt = 0;
 int	query_type = 0;
 int	prev_comment = 0;	/* was previous record a comment? */
@@ -853,6 +851,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 	u_int cnt;
  	u_char *cp, *nmp, *eom, *tmp ;
 	u_char *buf = NULL, *cpp = NULL;
+	u_char *bp;
 	u_int bufsize = 0;
 	char name[MAXDNAME], name2[MAXDNAME];
 	struct sockaddr_in sin;
@@ -864,6 +863,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 	struct sigvec sv, osv;
 #endif
 	int qdcount, ancount, aucount, arcount, class, type;
+	int first_serial;
 	const char *badsoa_msg = "Nil";
 	struct sockaddr_in my_addr;
 	char my_addr_text[30];
@@ -874,7 +874,9 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 	u_char sig[64];
 	int siglen;
 	int ixfr_first = 1;
+	int loop_cnt = 0;
 	time_t timesigned;
+	u_int32_t query_serial = serial_no;
 
 #ifdef DEBUG
 	if (debug) {
@@ -983,7 +985,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 			(void) my_close(s);
 			continue;
 		}	
-		if (methode == ISIXFR) {
+		if (methode == ISIXFR && was_ixfr == 0) {
 			hp = (HEADER *) buf;
 			cpp = buf;
 			n = res_nmkquery(&res, QUERY, zp->z_origin, curclass,
@@ -1070,9 +1072,10 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 		 * Get out your butterfly net and catch the SOA
 		 */
 		
-		if (netread(s, (char *)buf, INT16SZ, XFER_TIMER) < 0) {
-			error++;
+		if (netread(s, (char *)buf, INT16SZ, 
+			(soa_cnt == 0) ?400 :XFER_TIMER) < 0) {
 			(void) my_close(s);
+			error++;
 			continue;
 		}
 		if ((len = ns_get16(buf)) == 0) {
@@ -1118,16 +1121,10 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 			res_pquery(&res, buf, len, ddt);
 		}
 #endif
-		if ((methode == ISIXFR) && (ixfp == NULL)) {
+		if (((methode == ISIXFR) && (ixfp == NULL)) && was_ixfr == 0) {
 			delete_soa = 1;	
-			firstsoa = 1;
 			ixfr_soa = 0;
-			old_serial = serial_no;
-			if (ixfp != NULL) {
-				fflush(ixfp);
-				/* XXX error */
-				ftruncate(fileno(ixfp), 0);
-			} else if ((ixfp = fopen(tmpiname, "w+")) == NULL) {
+			if ((ixfp = fopen(tmpiname, "w+")) == NULL) {
 				perror(tmpiname);
 				if (!quiet)
 					syslog(LOG_ERR,
@@ -1142,7 +1139,6 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 		ancount = ntohs(hp->ancount);
 		aucount = ntohs(hp->nscount);
 		arcount = ntohs(hp->arcount);
-
 		/*
 		 * close socket if any of these apply:
 		 *  1) rcode != NOERROR
@@ -1152,7 +1148,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 		 */
 		if (hp->rcode != NOERROR || !hp->aa || qdcount != 1 ||
 		    (ancount < 1 && aucount < 1)) {
-#ifndef ultrix  /*XXX*/
+#ifndef SYSLOG_42BSD
 			syslog(LOG_NOTICE,
        "[%s] %s for %s, SOA query got rcode %d, aa %d, ancount %d, aucount %d",
 			       inet_ntoa(sin.sin_addr),
@@ -1184,6 +1180,12 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 		tmp = buf + HFIXEDSZ;
 		eom = buf + len;
 		/* Query Section. */
+		if (qdcount > 1) {
+			badsoa_msg = "question error";
+			goto badsoa;
+		}
+		if (qdcount < 1)
+			goto no_question;
 		n = dn_expand(buf, eom, tmp, name2, sizeof name2);
 		if (n < 0) {
 			badsoa_msg = "qname error";
@@ -1196,8 +1198,10 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 		}
 		NS_GET16(type, tmp);
 		NS_GET16(class, tmp);
-		if (class != curclass || ((type != T_SOA) && type != T_IXFR) ||
-		    ns_samename(zp->z_origin, name2) != 1) {
+		if (class != curclass || 
+			((type != T_SOA) && (type != T_IXFR) && (type != T_AXFR)) ||
+		    ns_samename(zp->z_origin, name2) != 1) 
+		{
 			syslog(LOG_INFO,
 			"wrong query in resp from [%s], zone %s: [%s %s %s]\n",
 			       inet_ntoa(sin.sin_addr), zp->z_origin,
@@ -1206,15 +1210,16 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 			(void) my_close(s);
 			continue;
 		}
+ no_question:
 		/* ... Answer Section.
 		 * We may have to loop a little, to bypass SIG SOA's in
 		 * the response.
 		 */
+		loop_cnt = 0;
 		do {
 			u_char *cp4;
 			u_short type, class, dlen;
 			u_int32_t ttl;
-
 			n = dn_expand(buf, eom, tmp, name2, sizeof name2);
 			if (n < 0) {
 				badsoa_msg = "aname error";
@@ -1236,12 +1241,53 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 				badsoa_msg = "zinfo dlen too big";
 				goto badsoa;
 			}
-			if (type == T_SOA)
+			if (type == T_SOA) {
+			  if (was_ixfr)  {
+				methode = ISNOTIXFR;
+				break;
+			  }
+			  if ((methode == ISIXFR) && (loop_cnt == 0)) {
+				bp = tmp;
+			  	soa_cnt++;
+				badsoa_msg = soa_zinfo(&zp_finish, tmp, eom);
+				if (badsoa_msg)
+					goto badsoa;
+				if (ixfp)
+					  if (ixfr_log(buf, len, &delete_soa, ixfp,
+						 &sin, domain, &serial_no,
+						 &ixfr_first) < 0) {
+						 error++;
+						 break;
+					  }
+			  } else { 
+				if (methode == ISIXFR) {
+					check_serial = 0;
+			 		soa_cnt++;
+					break;
+				}
+				break;
+			   }
+			}
+			if ((loop_cnt >= 1) && (soa_cnt < 2)) {
+					dprintf(1,
+				      	"server %s %d rejected IXFR and responded with AXFR\n",
+					       inet_ntoa(sin.sin_addr), soa_cnt);
+					methode = ISNOTIXFR;
+					check_serial = 0;
+					was_ixfr++;
+					tmp = bp;
 				break;
+			}
 			/* Skip to next record, if any.  */
 			dprintf(1, "skipping %s %s RR in response\n",
 				name2, p_type(type));
 			tmp = cp4 + dlen;
+			loop_cnt++;
+			if (loop_cnt >= ancount) {
+				tmp = bp;
+				check_serial = 0;
+				break;
+			}
 		} while (1);
 
 		if (ns_samename(zp->z_origin, name2) != 1) {
@@ -1256,28 +1302,17 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 		badsoa_msg = soa_zinfo(&zp_start, tmp, eom);
 		if (badsoa_msg)
 			goto badsoa;
+		if (methode == ISNOTIXFR) {
 		if (SEQ_GT(zp_start.z_serial, serial_no) || !check_serial) {
 			const char *l, *nl, *t;
 
+			if (soa_cnt)  {
+				goto axfr_response;
+			}
 			dprintf(1, "need update, serial %u\n",
 				zp_start.z_serial);
+			soa_cnt = 0;
 			hp = (HEADER *) buf;
-			if ((methode == ISIXFR) && (soa_cnt == 0)) {
- 				if (type == T_IXFR) {
-					if (ixfp)
-						ixfr_log(buf, len, &delete_soa, ixfp,
-						 &sin, domain, serial_no,
-							 &ixfr_first);
-				  	soa_cnt = 2;
-				} else {
-					dprintf(1,
-				      	"server %s rejected IXFR and responded with AXFR\n",
-					       inet_ntoa(sin.sin_addr));
-						methode = ISNOTIXFR;
-						was_ixfr++;
-						soa_cnt++;
-				}
-			}
 			ns_cnt = 0;
 			gettime(&tt);
 			locallen = sizeof local;
@@ -1394,7 +1429,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 					}
 				}
 /*XXX ZXFR*/
-		if (methode == ISNOTIXFR && !was_ixfr) {
+receive:
 				/*
 				 * Receive length & response
 				 */
@@ -1426,7 +1461,6 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 					error++;
 					break;
 				}
-			}
 #ifdef DEBUG
 				if (debug >= 3) {
 					(void)fprintf(ddt,"len = %d\n", len);
@@ -1456,8 +1490,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 					}
 				}
 				if (len < HFIXEDSZ) {
-
-		badrec:
+ badrec:
 					error++;
 					alen = sizeof my_addr;
 					if (getsockname(s, (struct sockaddr *)
@@ -1487,6 +1520,7 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 					}
 					break;
 				}
+axfr_response:
 				if (query_type == T_IXFR) 
 					if (hp->rcode != NOERROR) {
 					    dprintf(1,
@@ -1508,156 +1542,360 @@ getzone(struct zoneinfo *zp, u_int32_t serial_no, int port) {
 					    ((n + QFIXEDSZ) >= (eom - cp)))
 						goto badrec;
 					cp += n + QFIXEDSZ;
-				} else {
-					if (methode == ISIXFR &&  ixfp)
-					  ixfr_log(buf, len, &delete_soa, ixfp,
-						 &sin, domain, serial_no,
-						 &ixfr_first);
-
 				}
 				nmp = cp;
 				if ((n = dn_skipname(cp, eom)) == -1)
 					goto badrec;
 				tmp = cp + n;
-			if (zp->z_type == Z_STUB) {
-				ancount = ntohs(hp->ancount);
-				n = 0;
-				for (cnt = 0; cnt < (u_int)ancount; cnt++) {
-					n = print_output(zp, serial_no, buf,
-							 len, cp);
-					if (n < 0)
+				if (zp->z_type == Z_STUB) {
+					ancount = ntohs(hp->ancount);
+					n = 0;
+					for (cnt = 0;
+					     cnt < (u_int)ancount;
+					     cnt++) {
+						n = print_output(zp,
+								 serial_no,
+								 buf, len, cp,
+								 was_ixfr);
+						if (n < 0)
+							break;
+						cp += n;
+					}
+					/*
+					 * If we've processed the answer
+					 * section and didn't get any useful
+					 * answers, bail out.
+					 */
+					if (query_type == T_SOA &&
+					    soa_cnt == 0) {
+						syslog(LOG_ERR,
+						    "stubs: no SOA in answer");
+						error++;
 						break;
-					cp += n;
-				}
-				/*
-				 * If we've processed the answer section and
-				 * didn't get any useful answers, bail out.
-				 */
-				if (query_type == T_SOA && soa_cnt == 0) {
-					syslog(LOG_ERR,
-					       "stubs: no SOA in answer");
-					error++;
-					break;
-				}
-				if (query_type == T_NS && ns_cnt == 0) {
-					syslog(LOG_ERR,
-					       "stubs: no NS in answer");
-					error++;
-					break;
-				}
-				if (n >= 0 && hp->nscount) {
-					ancount = ntohs(hp->nscount);
+					}
+					if (query_type == T_NS &&
+					    ns_cnt == 0) {
+						syslog(LOG_ERR,
+						     "stubs: no NS in answer");
+						error++;
+						break;
+					}
+					if (n >= 0 && hp->nscount) {
+						ancount = ntohs(hp->nscount);
+						for (cnt = 0;
+						     cnt < (u_int)ancount;
+						     cnt++) {
+							n = print_output(zp,
+								     serial_no,
+									 buf,
+									 len,
+									 cp,
+								     was_ixfr);
+							if (n < 0)
+								break;
+							cp += n;
+						}
+					}
+					ancount = ntohs(hp->arcount);
 					for (cnt = 0;
+					     n > 0 && cnt < (u_int)ancount;
+					     cnt++) {
+						n = print_output(zp, serial_no,
+								 buf, len, cp,
+								 was_ixfr);
+						cp += n;
+					}
+					if (n < 0) {
+						syslog(LOG_INFO,
+			      "print_output: unparseable answer (%d), zone %s",
+						       hp->rcode,
+						       zp->z_origin);
+						error++;
+						break;
+					}
+					if (cp != eom) {
+						syslog(LOG_INFO,
+				"print_output: short answer (%d, %d), zone %s",
+						       cp - buf, eom - buf,
+						       zp->z_origin);
+						error++;
+						break;
+					}
+				} else {
+					ancount = ntohs(hp->ancount);
+					if (query_type == T_IXFR &&
+					    methode == ISIXFR) {
+						if (ixfr_log(buf, len,
+							     &delete_soa, ixfp,
+							     &sin, domain,
+							     &serial_no,
+							     &ixfr_first) < 0){
+								error++;
+								break;
+							}
+					}
+					for (n = cnt = 0;
 					     cnt < (u_int)ancount;
 					     cnt++) {
 						n = print_output(zp, serial_no,
-								 buf, len,
-								 cp);
+								 buf, len, cp,
+								 was_ixfr);
 						if (n < 0)
 							break;
 						cp += n;
 					}
-				}
-				ancount = ntohs(hp->arcount);
-				for (cnt = 0;
-				     n > 0 && cnt < (u_int)ancount;
-				     cnt++) {
-					n = print_output(zp, serial_no, buf,
-							 len, cp);
-					cp += n;
-				}
-				if (n < 0) {
-					syslog(LOG_INFO,
-			      "print_output: unparseable answer (%d), zone %s",
-					       hp->rcode, zp->z_origin);
-					error++;
-					break;
-				}
-				if (cp != eom) {
-					syslog(LOG_INFO,
+					if (n < 0) {
+						syslog(LOG_INFO,
+			"print_output: unparseable answer (%d), zone %s",
+						       hp->rcode,
+						       zp->z_origin);
+						error++;
+						break;
+					}
+					if (cp != eom) {
+						syslog(LOG_INFO,
 				"print_output: short answer (%d, %d), zone %s",
-					       cp - buf, eom - buf,
-					       zp->z_origin);
-					error++;
-					break;
-				}
-			} else {
-				ancount = ntohs(hp->ancount);
-				for (n = cnt = 0; cnt < (u_int)ancount; cnt++) {
-					n = print_output(zp, serial_no, buf,
-							 len, cp);
-					if (n < 0)
+						       cp - buf, eom - buf,
+						       zp->z_origin);
+						error++;
 						break;
-					cp += n;
+					}
 				}
-				if (n < 0) {
-					syslog(LOG_INFO,
-			"print_output: unparseable answer (%d), zone %s",
-						hp->rcode, zp->z_origin);
-					error++;
+				if ((soa_cnt >= 2) && (methode == ISNOTIXFR))
 					break;
-				}
-				if (cp != eom) {
-					syslog(LOG_INFO,
-				"print_output: short answer (%d, %d), zone %s",
-					       cp - buf, eom - buf,
-					       zp->z_origin);
-					error++;
+				if ((soa_cnt == -1) && (methode == ISIXFR))
 					break;
-				}
 			}
-
-			if ((soa_cnt >= 2) && (methode == ISNOTIXFR))
-				break;
-			if ((soa_cnt == -1) && (methode == ISIXFR))
-				break;
-		}
-		(void) my_close(s);
-		if (error == 0) {
+			(void) my_close(s);
+			if (error == 0) {
 #ifdef POSIX_SIGNALS
-			(void) sigaction(SIGALRM, &osv,
-					 (struct sigaction *)0);
+				(void) sigaction(SIGALRM, &osv,
+						 (struct sigaction *)0);
 #else
-			(void) sigvec(SIGALRM, &osv, (struct sigvec *)0);
+				(void) sigvec(SIGALRM, &osv,
+					      (struct sigvec *)0);
 #endif
-			if (methode == ISIXFR) {
-					fprintf(ixfp, "update:\t{add} ");
-					if (soa_buf)
-					  fputs(soa_buf, ixfp);
-					fprintf(ixfp, "[END_DELTA]\n");
-					(void) my_close(s);
-				return (XFER_SUCCESSIXFR);
-			} else {
 				if (ixfp) {
 					(void) fclose(ixfp);
 					ixfp = NULL;
 				}
 				return (XFER_SUCCESSAXFR);
 			}
-		}
-		if (ixfp) {
-			(void) fclose(ixfp);
-			ixfp = NULL;
-		}
-		dprintf(2, "error receiving zone transfer\n");
-	    } else if (zp_start.z_serial == serial_no) {
+			if (ixfp) {
+				(void) fclose(ixfp);
+				ixfp = NULL;
+			}
+			dprintf(2, "error receiving zone transfer\n");
+		} else if (zp_start.z_serial == serial_no) {
 			(void) my_close(s);
-			dprintf(1, "zone up-to-date, serial %u\n", zp_start.z_serial);
+			dprintf(1, "zone up-to-date, serial %u\n",
+				zp_start.z_serial);
 			if (ixfp) {
 				(void) unlink (tmpiname);
 				(void) fclose(ixfp);
 				ixfp = NULL;
 			}
 			return (XFER_UPTODATE);
-	    } else {
+		} else {
 			(void) my_close(s);
 			if (!quiet)
-		   	 syslog(LOG_NOTICE,
+				syslog(LOG_NOTICE,
 		      "serial from [%s], zone %s: %u lower than current: %u\n",
-			   inet_ntoa(sin.sin_addr), zp->z_origin,
-			   zp_start.z_serial, serial_no);
+				       inet_ntoa(sin.sin_addr), zp->z_origin,
+				       zp_start.z_serial, serial_no);
 			return (XFER_FAIL);
-	    }
+		}
+		} else {
+			if (zp_finish.z_serial == query_serial) {
+				(void) my_close(s);
+				dprintf(1, "zone up-to-date, serial %u\n",
+					zp_start.z_serial);
+				if (ixfp) {
+					(void) unlink (tmpiname);
+					(void) fclose(ixfp);
+					ixfp = NULL;
+				}
+				return (XFER_UPTODATE);
+			}
+			if (SEQ_GT(query_serial, zp_finish.z_serial)) {
+				if (!quiet)
+				syslog(LOG_NOTICE,
+		             "serial from [%s], zone %s: %u lower than current: %u\n",
+				       inet_ntoa(sin.sin_addr), zp->z_origin,
+				       zp_finish.z_serial, query_serial);
+				dprintf(1, 
+		             "serial from [%s], zone %s: %u lower than current: %u\n",
+					inet_ntoa(sin.sin_addr), zp->z_origin,
+					zp_finish.z_serial, query_serial);
+				if (ixfp) {
+					(void) fclose(ixfp);
+					ixfp = NULL;
+					(void) unlink (tmpiname);
+				}
+				if (was_ixfr == 0) {
+					was_ixfr++;
+					n = res_nmkquery(&res, QUERY,
+							 zp->z_origin,
+							 curclass, T_AXFR,
+							 NULL, 0,
+							 NULL, buf, bufsize);
+					if (n < 0) {
+						if (!quiet)
+							syslog(LOG_INFO,
+		    		               "zone %s: res_nmkquery T_SOA failed",
+							       zp->z_origin);
+						(void) my_close(s);
+#ifdef POSIX_SIGNALS
+						(void) sigaction(SIGALRM, &osv,
+							(struct sigaction *)0);
+#else
+						(void) sigvec(SIGALRM, &osv,
+							   (struct sigvec *)0);
+#endif
+						return (XFER_FAIL);
+					}
+					/*
+					 * Append TSIG to SOA query if desired
+					 */
+					tsig_key = tsig_key_from_addr(sin.sin_addr);
+					if (tsig_key != NULL) {
+						siglen = sizeof(sig);
+						ret = ns_sign(buf, &n, bufsize,
+							      NOERROR,
+							      tsig_key, NULL,
+							      0, sig, &siglen,
+							      timesigned);
+						if (ret == 0)
+							tsig_signed = 1;
+					}
+
+				/*
+				 * Send length & message for AXFR query
+				 */
+					if (writemsg(s, buf, n) < 0)
+						syslog(LOG_INFO,
+						       "writemsg: %m");
+					else {
+						methode = ISNOTIXFR;
+						check_serial = 0;
+						soa_cnt = 0;
+						was_ixfr = 0;
+						goto receive;
+					}
+				}
+				(void) my_close(s);
+				return (XFER_FAIL);
+			}
+			if (ancount == 1) {
+				methode = ISNOTIXFR;
+				check_serial = 0;
+				soa_cnt = 0;
+				goto axfr_response;
+			}
+			dprintf(1, "We have an IXFR\n");
+			while (SEQ_GT(zp_finish.z_serial, serial_no)) {
+				/*
+				 * Receive length & response
+				 */
+				if (netread(s, (char *)buf, INT16SZ,
+					    (soa_cnt == 0) ?300 :XFER_TIMER)
+				    < 0) {
+					error++;
+					break;
+				}
+				if ((len = ns_get16(buf)) == 0)
+					break;
+				if (len > bufsize) {
+					buf = (u_char *)realloc(buf, len);
+					if (buf == NULL) {
+						syslog(LOG_INFO,
+		   	 "malloc(%u) failed for packet from server [%s], zone %s\n",
+						       len,
+						       inet_ntoa(sin.sin_addr),
+						       zp->z_origin);
+						error++;
+						break;
+					}
+					bufsize = len;
+				}
+				hp = (HEADER *)buf;
+				eom = buf + len;
+				if (netread(s, (char *)buf, len, XFER_TIMER)
+				    < 0) {
+					error++;
+					break;
+				}
+#ifdef DEBUG
+				if (debug >= 3) {
+					(void)fprintf(ddt,"len = %d\n", len);
+					res_pquery(&res, buf, len, ddt);
+				}
+				if (fp)
+					res_pquery(&res, buf, len, fp);
+#endif
+				/*
+				 * Verify the TSIG if expected
+				 */
+				if (tsig_signed != 0) {
+					tsig_req = (soa_cnt == 0);
+					ret = ns_verify_tcp(buf, (int *)&len,
+							    &tsig_state,
+							    tsig_req);
+					eom = buf + len;
+
+					if (ret != 0) {
+						syslog(LOG_NOTICE,
+		"TSIG verification from server [%s], zone %s: %s (%d)\n",
+							inet_ntoa(sin.sin_addr),
+							zp->z_origin,
+							tsig_rcode(ret), ret);
+						error++;
+						break;
+					}
+				}
+				if (len < HFIXEDSZ) {
+					error++;
+					alen = sizeof my_addr;
+					if (getsockname(s, (struct sockaddr *)
+							&my_addr, &alen) < 0)
+						sprintf(my_addr_text, "[errno %d]", errno);
+					else
+						sprintf(my_addr_text, "[%s].%u",
+							inet_ntoa(my_addr.  sin_addr),
+							ntohs(my_addr.sin_port));
+					if ((hp->rcode == REFUSED) &&
+					    (len >= HFIXEDSZ)) {
+						syslog(LOG_INFO,
+				  			"[%s] transfer refused from [%s], zone %s\n",
+						       my_addr_text,
+						       inet_ntoa(sin.sin_addr),
+						       zp->z_origin);
+					} else {
+						syslog(LOG_INFO,
+				  "[%s] record too short from [%s], zone %s\n",
+						       my_addr_text,
+						       inet_ntoa(sin.sin_addr),
+						       zp->z_origin);
+					}
+					break;
+				}
+				if (ixfp)
+				  if (ixfr_log(buf, len, &delete_soa, ixfp,
+						 &sin, domain, &serial_no,
+						 &ixfr_first) < 0) {
+							error++;
+							break;
+				  }
+			}
+			(void) my_close(s);
+			if (!error) {
+				fprintf(ixfp, "update:\t{add} ");
+				if (soa_buf)
+				  fputs(soa_buf, ixfp);
+				fprintf(ixfp, "[END_DELTA]\n");
+				return (XFER_SUCCESSIXFR);
+			}
+		}
 	}
 #ifdef POSIX_SIGNALS
 	(void) sigaction(SIGALRM, &osv, (struct sigaction *)0);
@@ -1703,10 +1941,12 @@ netread(int fd, char *buf, int len, int timeout) {
 	ival = zeroival;
 	ival.it_value.tv_sec = timeout;
 	while (len > 0) {
+#ifndef WINNT
 		if (setitimer(ITIMER_REAL, &ival, NULL) < 0) {
 			syslog(LOG_INFO, setitimerStr);
 			return (-1);
 		}
+#endif 
 		errno = 0;
 		salen = sizeof sa;
 		n = recvfrom(fd, buf, len, 0, (struct sockaddr *)&sa, &salen);
@@ -1743,10 +1983,12 @@ netread(int fd, char *buf, int len, int timeout) {
 		buf += n;
 		len -= n;
 	}
+#ifndef WINNT
 	if (setitimer(ITIMER_REAL, &zeroival, NULL) < 0) {
 		syslog(LOG_INFO, setitimerStr);
 		return (-1);
 	}
+#endif
 	return (0);
 }
 
@@ -1826,7 +2068,7 @@ soa_zinfo(struct zoneinfo *zp, u_char *cp, u_char *eom) {
  */
 static int
 print_output(struct zoneinfo *zp, u_int32_t serial_no, u_char *msg,
-	     int msglen, u_char *rrp) {
+	     int msglen, u_char *rrp, int was_ixfr) {
 	u_char *cp;
 	HEADER *hp = (HEADER *) msg;
 	u_int32_t addr, ttl, tmpnum;
@@ -2196,9 +2438,8 @@ print_output(struct zoneinfo *zp, u_int32_t serial_no, u_char *msg,
 					zp->z_origin, zp_finish.z_serial);
 			}
 			soa_cnt++;
-			if ((methode == ISIXFR) || (soa_cnt >= 2)) {
+			if (methode == ISIXFR)
 				return (result);
-			}
 		} else {
 			badsoa_msg = soa_zinfo(&zp_finish, rr_type_ptr, eom);
 			if (badsoa_msg) {
@@ -2256,6 +2497,9 @@ print_output(struct zoneinfo *zp, u_int32_t serial_no, u_char *msg,
 				return (result);
 			}
 		}	
+		if ((soa_cnt == 2) && (was_ixfr == 0))	
+			return (result);
+
 	}
 
 	if (zp->z_type == Z_STUB) {
@@ -2758,7 +3002,7 @@ tsig_key_from_addr(struct in_addr addr) {
 	return NULL;
 }
 
-static void
+static u_int32_t 
 do_section(ns_msg *handle, ns_sect section, int pflag, FILE *file, int *delete) {
 	int n, sflag, rrnum;
 	char buf[2048];	/* XXX need to malloc */
@@ -2776,19 +3020,21 @@ do_section(ns_msg *handle, ns_sect section, int pflag, FILE *file, int *delete)
 	 */
 	sflag = (_res.pfcode & pflag);
 	if (_res.pfcode && !sflag)
-		return;
+		return (-1);
 
 	opcode = (ns_opcode)ns_msg_getflag(*handle, ns_f_opcode);
 	rrnum = 0;
+	serial = -1;
 	for (;;) {
 		if (ns_parserr(handle, section, rrnum, &rr)) {
-			if (errno != ENODEV)
+			if (errno != ENODEV) {
 				fprintf(file, ";; ns_parserr: %s\n",
 					strerror(errno));
-			else if (rrnum > 0 && sflag != 0 &&
+				return (-1);
+			} else if (rrnum > 0 && sflag != 0 &&
 				 (_res.pfcode & RES_PRF_HEAD1))
 				putc('\n', file);
-			return;
+			return (serial);
 		}
 		if (rrnum == 0 && sflag != 0 && (_res.pfcode & RES_PRF_HEAD1))
 			fprintf(file, ";; %s SECTION:\n",
@@ -2816,24 +3062,21 @@ do_section(ns_msg *handle, ns_sect section, int pflag, FILE *file, int *delete)
 				}
 				cp += n;
 				NS_GET32(serial, cp);
-				if (*delete && serial != old_serial)
-					/*XXX*/;
-				old_serial = serial;
 				switch (++ixfr_soa) {
 				case 1:
 					final_serial = serial;
 					if (soa_buf == NULL) {
 						if ((soa_buf = (char *)malloc(2 * PACKETSZ)) == NULL) {
 							syslog(LOG_INFO, "malloc(%u) failed", 2 * PACKETSZ);
-							return;
+							return(-1);
 						}
 						n = ns_sprintrr(handle, &rr, NULL, NULL,
 								soa_buf, 2*PACKETSZ);
 						if (n < 0) {
 							fprintf(file, ";; ns_sprintrr: %s\n",
 								strerror(errno));
-							return;
-				    	}
+							return (-1);
+						}
 					}
 					print_record = 0;
 					break;
@@ -2862,7 +3105,7 @@ do_section(ns_msg *handle, ns_sect section, int pflag, FILE *file, int *delete)
 				if (n < 0) {
 					fprintf(file, ";; ns_sprintrr: %s\n",
 						strerror(errno));
-					return;
+					return(-1);
 				}
 				fputs(buf, file);
 					fputc('\n', file);
@@ -2872,11 +3115,12 @@ do_section(ns_msg *handle, ns_sect section, int pflag, FILE *file, int *delete)
 		}
 		rrnum++;
 	}
+	return (serial);
 }
 
-static void
+static int
 ixfr_log(const u_char *msg, int len, int  *delete, FILE *file,
-	 struct sockaddr_in *sin, char *domain, u_int32_t serial_no,
+	 struct sockaddr_in *sin, char *domain, u_int32_t *serial_no,
 	 int *first_rr)
 {
 	ns_msg handle;
@@ -2885,17 +3129,20 @@ ixfr_log(const u_char *msg, int len, int  *delete, FILE *file,
 	ns_opcode opcode;
 	ns_rcode rcode;
 	u_int id, n;
-        char time[25];
+	char time[25];
 	ns_rr rr;
 	char *cp;
 	HEADER *hp;
 
- 	if ((_res.options & RES_INIT) == 0 && res_init() == -1)
- 		return;
+ 	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+		dprintf(1, "ixfr_log() failed\n");
+ 		return (-1);
+	}	
 
 	if (ns_initparse(msg, len, &handle) < 0) {
 		fprintf(file, ";; ns_initparse: %s\n", strerror(errno));
-		return;
+		dprintf(1, "ixfr_log() failed\n");
+		return (-1);
 	}
 	opcode = (ns_opcode) ns_msg_getflag(handle, ns_f_opcode);
 	rcode = (ns_rcode) ns_msg_getflag(handle, ns_f_rcode);
@@ -2905,7 +3152,8 @@ ixfr_log(const u_char *msg, int len, int  *delete, FILE *file,
 	{
 
 		(void) fprintf(file,"ns_parserr() failed");
-		return;
+		dprintf(1, "ixfr_log() failed\n");
+		return (-1);
 	}
 	type = (ns_type)rr.type;
 	class = (ns_class)rr.rr_class;
@@ -2915,12 +3163,13 @@ ixfr_log(const u_char *msg, int len, int  *delete, FILE *file,
 		(void) fprintf(file,"%s", LogSignature);
 		sprintf(time, "at %lu", (u_long)tt.tv_sec);
 		fprintf(file,
-	       "[IXFR_UPDATE] id %u from [%s].%d %s (named-xfr pid %ld):\n",
+	       "[IXFR_UPDATE] id %u from [%s].%d %s (named-xfer pid %ld):\n",
 			id, inet_ntoa(sin->sin_addr),
 			ntohs(sin->sin_port), time, (long)getpid());
 		(*first_rr)++;
 	}
-	do_section(&handle, ns_s_an, RES_PRF_ANS, file, delete);
+	*serial_no = do_section(&handle, ns_s_an, RES_PRF_ANS, file, delete);
+	return (1);
 }
 
 static const char *
@@ -2944,3 +3193,4 @@ tsig_rcode(int rcode) {
 	}
 	return ("FORMERR");
 }
+
diff --git a/contrib/bind/bin/named/Makefile b/contrib/bind/bin/named/Makefile
index 96a3927..f6ad6d0 100644
--- a/contrib/bind/bin/named/Makefile
+++ b/contrib/bind/bin/named/Makefile
@@ -1,4 +1,4 @@
-## Copyright (c) 1996-1999 by Internet Software Consortium
+## Copyright (c) 1996-2000 by Internet Software Consortium
 ##
 ## Permission to use, copy, modify, and distribute this software for any
 ## purpose with or without fee is hereby granted, provided that the above
@@ -13,7 +13,7 @@
 ## ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 ## SOFTWARE.
 
-# $Id: Makefile,v 8.47 1999/08/26 18:42:31 vixie Exp $
+# $Id: Makefile,v 8.49 2000/05/09 07:02:22 vixie Exp $
 # $FreeBSD$
 
 DESTDIR=
@@ -87,7 +87,7 @@ tmp_version.c: version.c Makefile ../Makefile ${SRCS} ${HDRS}
 	(u=$${USER-root} d=`pwd` h=`${HOSTNAMECMD}` t=`date`; \
 	sed -e "s|%WHEN%|$${t}|" -e "s|%VERSION%|"${VER}"|" \
 	    -e "s|%WHOANDWHERE%|$${u}@$${h}:$${d}|" \
-	    < version.c > tmp_version.c)
+	    < version.c > tmp_version.c); sleep 1
 
 pathnames.h: ${TOP}/.settings Makefile pathtemplate.h
 	rm -f pathnames.h
diff --git a/contrib/bind/bin/nslookup/commands.l b/contrib/bind/bin/nslookup/commands.l
index c480d46..991ed66 100644
--- a/contrib/bind/bin/nslookup/commands.l
+++ b/contrib/bind/bin/nslookup/commands.l
@@ -159,7 +159,7 @@ nslookup_yy_input(buf, result, max_size, intr)
 %}
 WS	[ \t]
 FLET	[A-Za-z0-9.*\\_]
-LET	[A-Za-z0-9.*]
+LET	[A-Za-z0-9.*_]
 NAME	[A-Za-z0-9.*=_/-]
 %%
 ^{WS}*server{WS}+{LET}{NAME}*{WS}*$	{
@@ -196,10 +196,6 @@ NAME	[A-Za-z0-9.*=_/-]
 					    Finger(yytext, 0);
 					    return(1);
 					}
-^{WS}*view{WS}+{NAME}+{WS}*$	{
-					    ViewList((char *)yytext);
-					    return(1);
-					}
 ^{WS}*ls{WS}+(("-a"|"-d"|"-h"|"-m"|"-s"){WS}+)?{LET}{NAME}*{WS}+>>?{WS}+{NAME}+{WS}*$	{
 					    /*
 					     * 2nd arg.
diff --git a/contrib/bind/bin/nslookup/main.c b/contrib/bind/bin/nslookup/main.c
index 454fe12..c5ae700 100644
--- a/contrib/bind/bin/nslookup/main.c
+++ b/contrib/bind/bin/nslookup/main.c
@@ -78,7 +78,7 @@ char copyright[] =
 
 #ifndef lint
 static const char sccsid[] = "@(#)main.c	5.42 (Berkeley) 3/3/91";
-static const char rcsid[] = "$Id: main.c,v 8.13 1999/10/13 16:39:19 vixie Exp $";
+static const char rcsid[] = "$Id: main.c,v 8.14 2000/03/30 23:25:34 vixie Exp $";
 #endif /* not lint */
 
 /*
@@ -172,7 +172,7 @@ jmp_buf		env;
 
 
 /*
- * Browser command for help and view.
+ * Browser command for help.
  */
 char		*pager;
 
diff --git a/contrib/bind/port/freebsd/include/port_after.h b/contrib/bind/port/freebsd/include/port_after.h
index f6490ba..5203050 100644
--- a/contrib/bind/port/freebsd/include/port_after.h
+++ b/contrib/bind/port/freebsd/include/port_after.h
@@ -1,7 +1,6 @@
 /* $FreeBSD$ */
 #ifndef	PORT_AFTER_H
 #define	PORT_AFTER_H
-#define CAN_RECONNECT
 #define USE_POSIX
 #define POSIX_SIGNALS
 #define USE_UTIME